58732...70583 (28-digits)

This number is a prime.

                                              58732269 5299375476 2331570583

5873226952993754762331570583 + d, for d = 0, 4, 6, 10, 16, 18, 24, 28, 30, 34, 40, 46, 48, 54, 58, 60, 66, 70, is the largest known prime 18-tuplet. It was found by Jacek Szymkowiak in November 2026, breaking a record that had stood since 2014.